Doubletree-hitch.



UNITED STATES PATENT OFFICE.

DOUBLETREE-HlTCH.

nu. senseo.

Specification of Letters Patent.

Patented April 23, 1907.

.apparition ned. cette s. isos., sein Nu. as 7,145.

To all whoml it muy concern.-

Be it known that I, Gsoaoe J. WnxoKnnT, a citizen of the United States,residing at La Cygne, in the county of Linn and State of Kansas, haveinvented certain new and useful improvements in Doubletree-llitclies, ofwhich the following is a specification.

The object of my invention is to an improved spring construction whichwill obvintc :1li undue strain upon the horses and their harness, andwhich will avoid any jerking which is incidental to drawings wagon oragricultural implement over rough roads or fields.

The `invention consists in a doubletree hitch embodying e pair ofclevises. one clevis being secured to the ton ue or pole of the vehicleor agricultural impemcnt and the other clevis being secured to thedoubietree,.and s limited yieldinfJr connection between the twoclevises, all o which will be hereinafter particularly described andpointed out in the ap ndcd claims.

`Ior a full description of the invention and the merits thereof and alsoto acquire a knowledge ofthe details ol' construction of the means foreffecting the result, reference is to be had to the follo vingdescnption and accompanying drawirs, 1n which:

Figure l is a perspective View of my improved doubletree hitch; Fig. 2is e. longitudinal sectional view thereof; and, 3 is a horizontalsectional view. l

Corresponding and-like parts are referred to in the followin descriptionand indicated in all the views o the Y(.lruvngs bythe samereferencecharacters.

To the pole or tongue 1 is secured the cievis 2 whichis a U-shapedstructure, es shown, embodying two spaced apart parallel members oneabove the other and a cross or connecting member 3 which in the presentinstance is shown ns slightly bowed or arched. Preferably, the baseIncmberoi the,clevis is wider than the upper member thereof and saidbase member is secured to thefupper side of the tongue or pole by boltsor rivets, or by any'other suitable fastening devices. Both the basemembenend the uppermember of the clevis are provided with registeringlongitudinal slots 4 near their outer ends. Secured, i the doub etree 5is a -simi aclevis'fiso of -U-shape, as shown, with spaced apart upper 55 and lower members that ere formed near their outer ends withapertures. to'receive the rovidey assembled and disconnected from eachother lpreferably, in a ivotal manner, to

-with-res boit 'i that pivotally secures the doubletree to the saidclevis, said doubletree being eni-` braced by the members thereof. Thebolt 7 also extends into the slots 4 and the clevis 6 is positionedwithin the larger clevis 2, as shown, and a plate 8 is pivoted to theupper member of the clevis 2 and is arranged t0 be swung over the upperend of the bolt, so as to retain it in lace.

At its rear en( clevis 6 is provided with a hook 9 which is arranged fordetachable engagement with the front end of the compression spring 1U.This spring is secured at its rear end to the swivel 11 which extendsthrough the connecting member of the bar 3 of the clevis 2 to the rearside thereof and is lprovided with e thumb nut 12 so that thetension ofthe spring may be adjusted.

From the foregoing description in conne tion with the accompanyingdrawings, itis evident that the initial pull of the horse upon thedoubletree will be compensated for by the yielding of the spring l() andthe relartive forward movement of the clcvis 6 to u limited degreewithinthe clevis 2, thereby avoiding all-undue jerking or strain uponthe horse and the harness, and it is also evident that such strain `willbe precluded at all times, owing to the yielding connection between thetwo clevises, es above d escribcd.

The device is very sim le and eiiicient in operation, ns well as dur lein construction and two :nein parte thereof may be readily by the mere.insertion and detachment of the bolts 7 and the coupling or uncouplingof the hook 9 with the spruw 10. Having thus described the invention,what is claimed as new is: l. A doubletree hitch, comprising a clevisembodying spaced apart upper and lower- Inembers of which the letter 1sarranged for attuebment to e tongue or pole, both of said members beingprovided near their front ends -with longitudinal slots, another clevisdesigned to be received within the first named clevis and e'mbodying upr and lower spaced apart members provi ed near their front ends withbolt apertures designed ib5 IOO to receive a bolt for the purpose ofpivotally securing the doubletree thereto, e bo assed throuvh idapertures and moei 2 1n the slots ointb to permit the movement oform'clevis;4

et to the other, and s nection tween the two devises.

Lfirst named clevis v'vheliebye,v

yielding ooni'. A doubletree hitch, comprising n clevis embodying upperund lower .spaced npnrt members connected together nt their inner 'endsny n cross bur and provided near their front ends with longitudinulslots, Suid elevirs lieingdesigned for attachment to a pole or tongue,another c-levis adn )ted to be received within the first named clevsVand embodying spaced a art upper and-lower mem bers provided wif i boltapertures near their front ends, and n connecting cross bar, u boltadapted to pasthron h said apertures und be received in said sots anddesigned to couple the doubletree to (he Seeond named elevis, u hookprojoeting renrn'nrilly from the cross bnr of the hitler. n sp1-in;r:wrang-d for Connection lo `:iid hook, und wenn` for ndjustnlblyconnu-ling said spring lo Ille erosV bar of the first mnned Clovis, nsund for the purpose set forth.

In testimoni)r whereof l alix my signature in presence of two witnesses.

GEORGE J. WEICKERT. [1.. s.`| 'itllesses:

WiLsoN Suo'r'i, E. L. LEAsUnE.

